The company attributed its strong performance to record deliveries of its Model S plug-in sedan and improved margins.

Tesla is still expanding aggressively and said turning a profit at this point is "not our primary mission." Net income nonetheless increased 70% versus the previous quarter, with 5,150 Model S's delivered to customers.

The company improved production in the second quarter from 400 to almost 500 vehicles per week, and said further production gains are its "primary focus" going forward.

"The increasing rate of production and margin are even more compelling than the overall revenue and profit numbers," Kelley Blue Book senior analyst Karl Brauer said. "Tesla has clearly found an unmet market niche that's capable of supporting the company, at least in the near term."

Tesla said it plans to open "several more" dealerships this year, including its first in China. The company began deliveries to Europe this week, and said that if the demonstrated demand there and in North America is matched in Asia, the annualized Model S sales rate could surpass 40,000 by late 2014.

The Model S, for which prices start at $70,000, is currently the only car Tesla sells. The company is now developing an SUV known as the Model X that will begin delivery in late 2014, Musk told analysts Wednesday, with production ramping up in 2015.

On Monday, Musk plans to publish his design for a futuristic transport system called the Hyperloop, which he has said could be three or four times faster than a bullet train and immune to crashes and bad weather.

Musk told analysts Wednesday that he will "invite critical feedback and see if people can find ways to improve" his Hyperloop design, adding that he has no immediate plans to develop the project.

"I have to focus on core Tesla business and SpaceX business, and that's more than enough," he said.